Spring Task Scheduler 손쉽게 설정하기

Spring Task Scheduler 손쉽게 설정하기

예전에 회사를 다니면서 했던 작업중에 주기적으로 DB를 백업하거나 특정시간이

되면 타 시스템에 접속하여 데이터를 가져오거나 새벽 시간에 메일을 보낸다거나 할때

사용했던것이 Linux에 Cron(크론탭 이라고했음) 이였다. 크론탭을 등록하고 Java로

프로그램 하여 처리 했었는데 크론탭을 설정할때 java path설정하고 java lib를 로드하고

하려면 조금은 번거로웠었다. Spring에 Timer나 Quartz가 있지만, 내가 봤을때 손쉽게

설정하고 써먹기 좋은게 Task Scheduler 라서 사용방법을 알아보도록 하겠다.

1. XML설정

 - 현재 egov-com-servlet.xml 설정 일부 

   (옵션이 있지만 옵션은 검색을 통해서 찾아보기 바란다.)

<beans xmlns="http://www.springframework.org/schema/beans" 
			xmlns:context="http://www.springframework.org/schema/context" 
			xmlns:p="http://www.springframework.org/schema/p" 
			xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
			xmlns:mvc="http://www.springframework.org/schema/mvc"	
			xmlns:task="http://www.springframework.org/schema/task"			 
			xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd         
			http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
			http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
			 http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.0.xsd">


	<context:component-scan base-package="egovframework">
		<context:include-filter expression="org.springframework.stereotype.Controller" type="annotation"/>
		<context:exclude-filter expression="org.springframework.stereotype.Service" type="annotation"/>
		<context:exclude-filter expression="org.springframework.stereotype.Repository" type="annotation"/>
	</context:component-scan>
	
	<!-- Activates @Scheduled and @Async annotations for scheduling -->
	<task:annotation-driven />		

2. java 코드 작성

- 3초마다 실행되게 설정

 (크론 expression 설정방법은 하단에 기재)

@Component
public class BlogTask {
	
	@Resource(name="tagService")
	private TagService tagService;
	
	@Resource(name="counterService")
	private CounterService counterService;	
	
	private static final Logger LOGGER = LoggerFactory.getLogger(BlogTask.class);	
	
	/**
	 * @desc : Task Scheduler Test
	 */
	@Scheduled(cron="0/3 * * * * *")
	public void taskSchedulerTest() {
		LOGGER.debug("taskSchedulerTest - TASK START ");
		try {
			
			LOGGER.debug("taskSchedulerTest - Job!!");
			
		LOGGER.debug("taskSchedulerTest - Succ");
		} catch (Exception ex) {
		    ex.printStackTrace();
		    LOGGER.debug("taskSchedulerTest - Fail");
		}		
		LOGGER.debug("taskSchedulerTest - TASK END ");		
	}
}

- 로그확인 3초마다 실행된 로그가 찍혔다.

2016/08/23 10:33:48,001 [pool-1-thread-1] DEBUG egovframework.blog.task.BlogTask  - taskSchedulerTest - TASK START 
2016/08/23 10:33:48,001 [pool-1-thread-1] DEBUG egovframework.blog.task.BlogTask  - taskSchedulerTest - Job!!
2016/08/23 10:33:48,001 [pool-1-thread-1] DEBUG egovframework.blog.task.BlogTask  - taskSchedulerTest - Succ
2016/08/23 10:33:48,001 [pool-1-thread-1] DEBUG egovframework.blog.task.BlogTask  - taskSchedulerTest - TASK END 
2016/08/23 10:33:51,001 [pool-1-thread-1] DEBUG egovframework.blog.task.BlogTask  - taskSchedulerTest - TASK START 
2016/08/23 10:33:51,001 [pool-1-thread-1] DEBUG egovframework.blog.task.BlogTask  - taskSchedulerTest - Job!!
2016/08/23 10:33:51,001 [pool-1-thread-1] DEBUG egovframework.blog.task.BlogTask  - taskSchedulerTest - Succ
2016/08/23 10:33:51,001 [pool-1-thread-1] DEBUG egovframework.blog.task.BlogTask  - taskSchedulerTest - TASK END 
2016/08/23 10:33:54,001 [pool-1-thread-1] DEBUG egovframework.blog.task.BlogTask  - taskSchedulerTest - TASK START 
2016/08/23 10:33:54,001 [pool-1-thread-1] DEBUG egovframework.blog.task.BlogTask  - taskSchedulerTest - Job!!
2016/08/23 10:33:54,001 [pool-1-thread-1] DEBUG egovframework.blog.task.BlogTask  - taskSchedulerTest - Succ
2016/08/23 10:33:54,001 [pool-1-thread-1] DEBUG egovframework.blog.task.BlogTask  - taskSchedulerTest - TASK END 

이제 쉽게 스케쥴러를 사용하실 수 있습니다.

[참고] Cron 표현식

특수문자의 의미

사용 예

이전 Task와 Delay 설정